US20060124044A1 - Vessel provided with a foil situated below the waterline - Google Patents

Vessel provided with a foil situated below the waterline Download PDF

Info

Publication number
US20060124044A1
US20060124044A1 US10/525,755 US52575505A US2006124044A1 US 20060124044 A1 US20060124044 A1 US 20060124044A1 US 52575505 A US52575505 A US 52575505A US 2006124044 A1 US2006124044 A1 US 2006124044A1
Authority
US
United States
Prior art keywords
foil
vessel
hull
waterline
breadth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/525,755
Other languages
English (en)
Inventor
Pieter Van Oossanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VAN OOSSANEN and ASSOCIATES
Original Assignee
VAN OOSSANEN and ASSOCIATES
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VAN OOSSANEN and ASSOCIATES filed Critical VAN OOSSANEN and ASSOCIATES
Assigned to VAN OOSSANEN & ASSOCIATES reassignment VAN OOSSANEN & ASSOCIATES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VAN OOSSSANEN, PIETER
Publication of US20060124044A1 publication Critical patent/US20060124044A1/en
Priority to US11/494,675 priority Critical patent/US7617793B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/08—Shape of aft part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/246—Arrangements of propulsion elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
    • B63B1/248—Shape, hydrodynamic features, construction of the foil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/40—Other means for varying the inherent hydrodynamic characteristics of hulls by diminishing wave resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B39/061—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water by using trimflaps, i.e. flaps mounted on the rear of a boat, e.g. speed boat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H19/00—Marine propulsion not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/18—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
    • B63B1/20—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface
    • B63B2001/202—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface divided by transverse steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B2039/067—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water effecting motion dampening by means of fixed or movable resistance bodies, e.g. by bilge keels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Definitions

  • the present invention relates to a vessel with a single hull, the aft part of which has a smaller water displacement and less breadth lying in the water than the middle part, and provided with a foil extending below the waterline.
  • planing vessels are sometimes provided near the end with a foil or flap extending below the hull, in order to ensure that during planing the trim angle that the hull forms with the surface of the water is limited.
  • planing vessels generally have a hull that does not change substantially from the middle part in the aft direction.
  • the present invention relates to a non-planing vessel such as a sailing boat or a motor-driven vessel. It can be a relatively small vessel such as a leisure vessel or a large vessel such as a tanker, container ship and the like.
  • Such vessels are provided with a constriction, in other words the cross-sectional surface area decreases in the longitudinal direction of the vessel, viewed in the aft direction.
  • Such a reduction of the cross-sectional surface area is at least one third, and is normally approximately 50% from the point with the largest cross-sectional surface area of the submerged part of the vessel to the point with the smallest cross-sectional surface area of the submerged part of the vessel.
  • the flow of the water will be directed upwards and/or inwards.
  • the transom is not submerged in the water, but lies above the waterline.
  • length, breadth etc. are used in this description. These terms are associated with the position of the vessel in the water while it is being propelled in the usual direction.
  • the direction of propulsion is the longitudinal direction in this case.
  • a foil profile
  • This foil is arranged in such a way that, apart from an upward lifting force, a forward propulsion force is provided. This propulsion force manifests itself by faster travel in the same conditions or by reduced fuel consumption, or by both of these.
  • the distance from the foil to the hull is substantially constant over its full breadth.
  • the foil follows the shape of the hull precisely at a distance that does not vary.
  • the foil preferably extends over the greatest possible part of the “breadth” of the hull. In practice, this means that in the normal vertical position of the vessel the foil extends until close to the waterline.
  • the breadth of the foil is, however, important in the case of smaller vessels such as sailing vessels.
  • the foil according to the present invention is arranged immovably on the hull, and the distance from and orientation in relation to the hull is invariable.
  • the length of the foil in other words the size in the longitudinal direction of movement of the vessel, is at least 50% of the distance from the hull and is no more than 150% of said distance.
  • the length of the profile decreases in the outward direction from the longitudinal axis of the vessel.
  • the rear edge preferably tapers off.
  • FIG. 1 shows diagrammatically in side view a vessel according to the present invention
  • FIG. 2 shows the vessel according to FIG. 1 in top view
  • FIG. 3 shows the vessel in rear view.
  • the vessel according to the present invention is indicated in its entirety by 1 . It comprises a hull 2 which, as can be seen from FIG. 2 , is provided with a fore part 3 , which broadens out increasingly in the direction of movement of the vessel. Connected to it is a middle part 7 of substantially constant breadth, and following that a tapering aft part 4 . A considerable flow constriction occurs at the transition between part 7 and part 4 .
  • the aft end of the vessel sometimes projects above the waterline.
  • the longitudinal axis of the vessel is indicated by 8 .
  • a foil is fitted under the vessel. This foil is fixed in an immovable manner on the vessel by means of supports 11 .
  • the distance between the foil 10 and the hull 2 is constant and amounts to a.
  • the length 1 at the position of the axis 8 is preferably approximately equal to the distance a.
  • the length 1 of the foil decreases from the longitudinal axis 8 to the sides of the vessel, as can be seen from FIG. 2 .
  • the longest length is indicated by L in FIG. 1
  • the shortest length is indicated by L 1 in FIG. 2 . This reduction of the length is obtained owing to the fact that the rear side of the foil tapers.
  • the breadth b of the foil is preferably at least three times, and more particularly at least four times, the length L of said foil.
  • the profile is of such a shape that it causes a lifting force to be produced by the local flow rate at that point. Owing to the fact that the local flow is directed obliquely upwards (and backwards), this lifting force is not directed purely vertically, but slightly forward. The resultants arising from this have a component in the forward direction.
  • the foil can be made of any material known in the art. This material depends on the application. For competition boats it will be a light material, such as a material impregnated with carbon fibres. In the case of freight ships the material used will be steel or aluminium. A reduction in resistance of over 5% was found during experiments.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Ocean & Marine Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cookers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Table Devices Or Equipment (AREA)
  • Insulated Conductors (AREA)
US10/525,755 2002-08-28 2003-08-28 Vessel provided with a foil situated below the waterline Abandoned US20060124044A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/494,675 US7617793B2 (en) 2002-08-28 2006-07-28 Vessel provided with a foil situated below the waterline

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1021346A NL1021346C2 (nl) 2002-08-28 2002-08-28 Vaartuig voorzien van een zich onder de waterlijn bevindende vleugel.
NL1021346 2002-08-28
PCT/NL2003/000602 WO2004020276A1 (en) 2002-08-28 2003-08-28 Vessel provided with a foil situated below the waterline

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/494,675 Continuation-In-Part US7617793B2 (en) 2002-08-28 2006-07-28 Vessel provided with a foil situated below the waterline

Publications (1)

Publication Number Publication Date
US20060124044A1 true US20060124044A1 (en) 2006-06-15

Family

ID=31973728

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/525,755 Abandoned US20060124044A1 (en) 2002-08-28 2003-08-28 Vessel provided with a foil situated below the waterline

Country Status (11)

Country Link
US (1) US20060124044A1 (de)
EP (1) EP1545968B1 (de)
JP (1) JP2005537175A (de)
KR (1) KR100879555B1 (de)
AT (1) ATE409639T1 (de)
AU (1) AU2003263659A1 (de)
DE (1) DE60323852D1 (de)
DK (1) DK1545968T3 (de)
ES (1) ES2315561T3 (de)
NL (1) NL1021346C2 (de)
WO (1) WO2004020276A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617793B2 (en) 2002-08-28 2009-11-17 Van Oossanen & Associates Vessel provided with a foil situated below the waterline
EP2029420B1 (de) * 2006-06-19 2015-01-21 Van Oossanen & Associates B.V. Schiff mit Tragflügel unterhalb der Wasserlinie
NL2000109C2 (nl) 2006-06-19 2007-12-20 Oossanen & Associates B V Van Bij de achterzijde van een vaartuig aangebrachte vleugel.
NL2013178B1 (en) * 2014-07-14 2016-09-13 Van Oossanen & Ass B V Vessel comprising an aft foil oriented to provide a forwardly directed component of lift force.
NL2017379B1 (en) 2016-08-26 2018-03-06 Van Oossanen & Ass B V Vessel for operating on a body of water, comprising an aft foil for generating a thrust force and adjustment means for adjusting an angle of incidence of the aft foil.
GB201702625D0 (en) 2017-02-17 2017-04-05 Ben Ainslie Racing (Holdings) Ltd Powerboat
JP6944095B2 (ja) * 2019-09-11 2021-10-06 上野　康男 船舶用推進抵抗軽減装置
FR3121911A1 (fr) * 2021-04-16 2022-10-21 Syroco Dispositif sustentateur de bateau, et bateau équipé d’un tel dispositif sustentateur

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1549564A (en) * 1923-06-12 1925-08-11 Stephen E Slocum Propeller mount
US2597048A (en) * 1948-05-24 1952-05-20 Supermarin Ab Watercraft
US2767678A (en) * 1954-02-12 1956-10-23 Vertens Fritz Hydrofoil
US2991747A (en) * 1959-05-29 1961-07-11 Bader John Hydrofoil retraction and steering mechanism
US3006307A (en) * 1960-10-12 1961-10-31 Johnson John Algot Marine craft supporting hydrofoil having depth controlling slots
US3693570A (en) * 1970-09-07 1972-09-26 Erlykin Ivan I Hydrofoil watercraft

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1852680A (en) * 1930-06-27 1932-04-05 Shaw Charles Hydroplane
US2832304A (en) * 1955-08-30 1958-04-29 Donald A Elyosius Stern-mounted hydrofoil device
US3208422A (en) * 1964-09-28 1965-09-28 Richard W Schopmeyer Boat construction
FR1541693A (fr) * 1967-05-31 1968-10-11 Voilier hydroplane
US4628853A (en) * 1985-05-31 1986-12-16 Hoyt John G Recreational watercraft
JPS628893A (ja) * 1985-07-04 1987-01-16 Mitsubishi Heavy Ind Ltd 魚雷型没水体付き高速艇
US4915048A (en) 1987-04-28 1990-04-10 Corwin R. Horton Vessel with improved hydrodynamic performance
JPH04502138A (ja) * 1989-10-13 1992-04-16 エフ・エム・シー・コーポレーション 非対象式水中翼推進法とその装置
KR100422254B1 (ko) * 1996-04-17 2004-05-24 삼성중공업 주식회사 복합지지형수중익선의몰수체
JP2001294196A (ja) * 2000-04-12 2001-10-23 Tokai Univ 艇の船尾波増幅装置
JP2002053093A (ja) * 2000-08-11 2002-02-19 Tokai Univ 高速走行船の船尾波整形装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1549564A (en) * 1923-06-12 1925-08-11 Stephen E Slocum Propeller mount
US2597048A (en) * 1948-05-24 1952-05-20 Supermarin Ab Watercraft
US2767678A (en) * 1954-02-12 1956-10-23 Vertens Fritz Hydrofoil
US2991747A (en) * 1959-05-29 1961-07-11 Bader John Hydrofoil retraction and steering mechanism
US3006307A (en) * 1960-10-12 1961-10-31 Johnson John Algot Marine craft supporting hydrofoil having depth controlling slots
US3693570A (en) * 1970-09-07 1972-09-26 Erlykin Ivan I Hydrofoil watercraft

Also Published As

Publication number Publication date
KR100879555B1 (ko) 2009-01-22
DK1545968T3 (da) 2009-02-09
EP1545968B1 (de) 2008-10-01
NL1021346C2 (nl) 2004-03-10
ATE409639T1 (de) 2008-10-15
KR20050083655A (ko) 2005-08-26
ES2315561T3 (es) 2009-04-01
DE60323852D1 (de) 2008-11-13
WO2004020276A8 (en) 2005-03-03
EP1545968A1 (de) 2005-06-29
WO2004020276A1 (en) 2004-03-11
JP2005537175A (ja) 2005-12-08
AU2003263659A1 (en) 2004-03-19

Similar Documents

Publication Publication Date Title
US4174671A (en) Semisubmerged ship
US7487736B2 (en) Hybrid boat hull
US5211126A (en) Ship or boat construction having three hulls
US8955451B2 (en) Foil structure for providing buoyancy and lift
US5911187A (en) Pontoon
US5460110A (en) Method for changing the characteristics of a ship and a hull form of an icebreaking ship
US6289838B2 (en) Boat
EP1545968B1 (de) Schiff mit einer sich unter der wasserlinie erstreckendem blatt
KR20030042415A (ko) 배의 선수형상
CN111017129A (zh) 一种抗摇及加强航向稳定性的全回转拖轮
DK2029420T3 (en) Ship with a carrying wing below the waterline
US7617793B2 (en) Vessel provided with a foil situated below the waterline
US9415836B1 (en) Hybrid running surface boat
US6957620B1 (en) Self-generating air cushion vessel
CN201457689U (zh) 浅吃水船的船体
US3010419A (en) Ship's hull
KR0113266Y1 (ko) 선미 구조
US3489117A (en) Trapezoidal chine hull for displacement ships
JPH0580395B2 (de)
US3550550A (en) Ocean-going barge
US3088428A (en) Sail-boat
GB1604462A (en) Means with which to reduce resistance of surface marine vessels
CN217198531U (zh) 一种用于船舶的整流装置及船舶
US4563968A (en) Boat with improved hull
US11524750B1 (en) Hull for a wakesurf boat

Legal Events

Date Code Title Description
AS Assignment

Owner name: VAN OOSSANEN & ASSOCIATES, NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VAN OOSSSANEN, PIETER;REEL/FRAME:016894/0150

Effective date: 20050411

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION